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At least 19 recordsLinked to original sources

PubMedDate not supplied

Failure of short-term nutritional convalescence to reverse the adverse hemodynamic effects of protein-calorie malnutrition in dogs.

We previously reported that protein-calorie malnutrition (PCM) exerts adverse hemodynamic effects on left ventricular (LV) structure and function. In the present experiments, we tried to determine the duration of these adverse effects by inducing significant weight loss in matched beagle dogs followed by a short-term course of nutritional repletion. Following restitution of initial body weight, the animals were placed on total cardiopulmonary bypass and an isovolumetric LV preparation was established to determine baseline LV function compared with matched animals that remained normally-nourished, and with a third group in which the effects of PCM were not reversed. Decreases in LV compliance persisted following refeeding as did the decreases in the first derivative of LV pressure (LV dp/dt). Although animals re-fed ordinary diets following acute weight loss restored normal concentrations of myocardial glycogen, cardiac abnormalities persited for more than one month following refeeding. These results suggest that the adverse effects of semistarvation on LV functions cannot be completely reversed by short-term refeeding.

Animals↗

PubMed2026

Long-term outcomes after a randomized phase II trial of nerve growth factor eye drops for optic pathway gliomas: four-year follow-up findings in children.

PURPOSE: A previous double-blind, randomized, placebo-controlled, phase II clinical trial reported beneficial effects of a short-term treatment (10 days) with murine nerve growth factor (mNGF) eye drops on visual function in children with optic pathway gliomas (OPG). The present study aimed to evaluate long-term changes in clinical and neuroradiological parameters in the cohort of OPG patients who had previously participated in the phase II mNGF trial. METHODS: Fifteen of the 18 patients originally enrolled in the phase II mNGF trial agreed to undergo clinical and neuroradiological monitoring over a 48-month follow-up period. Of these, 9 had originally been randomized to mNGF and 6 to placebo; no additional treatment (mNGF, chemotherapy, or radiotherapy) was administered during the extended follow-up. Every 6 months, patients underwent general clinical and neuro-ophthalmological examination, visual evoked potentials (VEP), and photopic negative response of the electroretinogram (PhNR). Brain MRI was performed every 12 months. RESULTS: Comparison of initial and final follow-up median values revealed no statistically significant changes in visual acuity, VEP amplitude, PhNR amplitude, or visual field radius. No significant differences were observed in any parameter relative to baseline values of the mNGF trial. Brain MRI demonstrated stable disease in all patients throughout the observation period. CONCLUSION: These findings, obtained in an observational extension of the original randomized cohort, indicate favorable long-term safety and tolerability of a short-term course of topical mNGF in children with OPG, with sustained visual and neuroradiological stability over four years, rather than evidence of persistent treatment efficacy. Further prospective, adequately powered and randomized clinical studies are needed to confirm both the short- and long-term clinical efficacy of NGF treatment in preventing OPG-induced visual loss.

Humans↗

PubMed1979

Adrenal suppression after short-term corticosteroid therapy.

Adrenal function was evaluated in fourteen cancer patients receiving chemotherapy which included short-term high-dose courses of prednisone. 90 min corticotropin stimulation tests were performed before therapy and 1, 2, 4, and 7 days after steroids were discontinued. Responses were evaluated by standard criteria of adrenal function and by measurement of the intergrated cortisol response to corticotropin over 90 min. Thirteen of fourteen patients had suppressed adrenal function for at least 24 h. Although in most patients adrenal function had returned to normal between day 2 and 4, in five patients it remained suppressed for 7 days or more. Suppression did not correlate with either steroid dose or duration of therapy. Four of five patients receiving only 5 days' therapy showed evidence of adrenal suppression. Although overt clinical adrenal insufficiency after steroid administration is rare, these results indicate that adrenal function is suppressed more regularly after short-term high-dose steroid therapy than has been appreciated.

Adolescent↗

PubMed1978

[Preoperative renutrition in patients with esophageal stenosis].

UNLABELLED: 50 patients suffering from dysphagia and oesophageal stenosis were treated in the period 1975-77. Of these 31 had renutrition of longer than two weeks and are the subject of the present study. Three nutrition systems were employed: 1) total parenteral feeding (7 patients), 2) feeding by naso-gastric tube or gastric fistula (15 patients), 3) feeding per os with semiliquid foods (9 patients). The patients were suffering from benign cicatricial stenosis (5), tumours of the cardia (7), tumours of the oesophagus (19). Short-term survival, weight behaviour and the course of certain blood parameters (Hb, GR, cholesterol, albumin, total proteins) are reported. CONCLUSIONS: --in benign cicatricial stenosis and tumours of the cardia, a normal protein-caloric amount (2000-3500 KCal., 80-120 g/24 h of proteins) is sufficient to obtain weight increase and stabilization of blood examinations. The administration route is unimportant; --in malignant stenosis, 4000-6000 KCal. and 100-130 g of protein/24 h must be provided to obtain the same result. In patients treated with total parenteral nutrition the weight loss persists. The reason for this behaviour is not known; it is likely that enzymatic blocks exist in substrate utilization; --further study is needed to improve results obtained and to clarify the reasons for such behaviour.

Adult↗

PubMed1977

Value of thyroid-stimulating-antibody determinations in predicting short-term thyrotoxic relapse in Graves' disease.

Thirty consecutive patients with hyperthyroid Graves' disease received a 6-month course of antithyroid drugs. Sixteen patients relapsed within 6 months of the withdrawal of antithyroid therapy. All patients with high levels of thyroid-stimulating antibodies (TSAb) at the time of drug withdrawal relapsed within 2 months of discontinuing the antithyroid treatment while all patients with low or undetectable TSAb activity at the time of drug withdrawal remained in remission. It was not possible to predict the disease course in patients who had intermediate levels of TSAb when antithyroid therapy was stopped.

Adult↗

PubMed2026

Effects of short-course preoperative endocrine therapy on tumour morphology and immunohistochemical profile in oestrogen receptor-positive, HER2-negative breast cancer.

AIMS: Short-term preoperative endocrine therapy (ET) is increasingly used in oestrogen receptor (ER)-positive, HER2-negative breast cancer as a functional test of endocrine sensitivity. We aimed to characterise histomorphological and immunophenotypic changes following preoperative ET and to identify predictors of endocrine response, defined as post-treatment Ki67 ≤ 10%. METHODS AND RESULTS: In this retrospective single-centre study, 180 patients treated with short-course preoperative ET (median duration 29 days) were compared with 151 patients undergoing primary surgery without ET. Paired biopsy and resection specimens were assessed for histological features, stromal proportion, stromal tumour-infiltrating lymphocytes (strTILs) and expression of ER, progesterone receptor (PR), HER2 and Ki67. Genomic risk was determined using the MammaPrint assay. Preoperative ET was associated with a significant reduction in tumour proliferation, with 73.9% of cases showing post-treatment Ki67 ≤ 10% compared with none in controls (P < 0.001). Histological grade decreased in 36.7% of ET-treated tumours versus 7.9% of controls (P < 0.001), predominantly reflecting reduced mitotic activity. ER expression remained stable, whereas PR expression decreased more frequently following ET (P < 0.001) and was independently associated with Ki67-defined response. HER2-low status was more frequently observed after ET (P < 0.001), but HER2 expression and microenvironmental parameters, including strTILs, were not associated with response. High genomic risk was independently associated with a lower likelihood of achieving post-treatment Ki67 ≤ 10% (P < 0.001). CONCLUSIONS: Short-course preoperative ET induces rapid and reproducible morphological and immunophenotypic changes in ER-positive, HER2-negative breast cancer. Ki67-defined response is associated with genomic risk and PR expression, whereas microenvironmental features appear to have limited predictive value.

Humans↗

PubMed1975

Nutrition effect on liver and lysosomes. VIII. The undernourishment role in a following short-term starvation.

91 male, albino rats, Wistar strain, with body weight 150 +/- 10 g, subdivided into 2 series were investigated. The 1rst series animals (E) were fed on single daily meals in the course of 20 days, only 2 h in 24 h and after that period were subjected to complete starvation and investigated on the 24th, 48th, 72th and 96th h resp. after the ceasing of food supply. A 2nd animal series (C) serves as a control, which in the course of 20 days, were on a all-round diet and later put in identical conditions of complete starvation and also investigated on the 24th, 48th, 72th and 96th h. The liver histological, histo-enzymatical (AP, BG, AlkP and ATP) and electron microscopic changes followed up, as well as certain physiological, biochemical and morphometric indices. The dynamics of the alterations in complete starvation and the confrontation of the data between the 2 animal series with different preceding nutritional regimes show that: 1) single daily meals leads to real undernourishment; 2) the undernourishment predetermines a more severe course of the following period of complete starvation; 3) 3 phases are established during the complete starvation: adaptive, alterative-restorative and alterative. Each phase bears a definite subcellular characteristics where the lysosomes apparatus plays an essential role.

Acid Phosphatase↗

PubMed1976

Regulation of cellular growth by sodium pump activity.

Cellular growth has been found to be directly related to the amount of sodium pumping activity in mouse lymphoblasts (L5178-Y) cultured in varying concentrations of the cardiac glycoside, ouabain. No short-term adaptation (within one generation) occured; i.e., neither growth rate nor (Na+ + K+)-ATPase activity increased in cells cultured for 1-2 days in ouabain. Growth inhibition commenced after two hours, occurring concomitantly with decreased 3H-leucine incorporation into protein. The time course of this inhibition of protein synthesis, measured by leucine incorporation was similar to, but slightly slower than the time course or the dissipation of the sodium gradient. On the other hand, 3H-thymidine incorporation is unaffected by ouabain treatment over the same period. The uptake of 3H-alanine, a neutral amino acid thought to be transported via a Na+-dependent carri-r, was depressed concurrently with the sodium gradient dissipation. It is suggested, therefore, that ouabain inhibition of cellular growth results primarily from the dissipation of the sodium gradient leading to decreased Na+-dependent transport of amino acids (e.g., alanine) and, therefore, decreased protein synthesis, as observed by leucine incorporation. A sensitive and rapid method for determining ouabain inhibition of cell volume regulation is also described, which may prove potentially useful for assaying Na pump activity.

Adenosine Triphosphatases↗

PubMed1975

[Morphology of the clinical stage O of the prostatic carcinoma (incidental carcinoma) (author's transl)].

141 prostatic carcinomas of the clinical stage O (incidental carcinoma) have been analyzed morphologically. The tumors were highly differentiated carcinomas in 41.8% of the cases as compared to only 11.8% in the whole material of 989 carcinomas of all clinical stages in our prostatic carcinoma registry. In 42 cases (29.8%) the tumor involved less than 10% of the surgical material examined and here we find especially the highly differentiated carcinomas. In 22 cases (15.6%) the whole material was completely invaded by carcinomas and here the less differentiated carcinoma types are dominating. In 27 cases (19.2%) the carcinoma has spread to the periprostatic tissue and from here to perivascular and perineural lymphatics. Short-term follow-up was available in 117 cases. In only 17 cases no carcinoma therapy was initiated after the histological diagnosis. The morphological analysis shows that the clinical stage O of prostatic carcinoma includes completely different degrees of differentiation and extension. In planning the course of therapy the morphological findings have to be taken into consideration. The morphological analysis shows that the clinical stage O of prostatic carcinoma includes completely different degrees of differentiation and extension. In planning the course of therapy the morphological findings have to be taken into consideration.

Adenocarcinoma↗

PubMed1979

In vivo and in vitro reactions to antigens of Haemophilus influenzae in bronchial obstruction.

The frequency of precipitating antibody to heat-labile (H(1--2) and heat-stable (HCW and HCF) antigens of Haemophilus influenzae was determined in patients with asthma, chronic bronchitis, cystic fibrosis and bronchiectasis and compared with that in a control group. This showed that the immune response of asthmatic patients to heat-stable antigens was different from that to the heat-labile antigens. Exposure to antigens of H. influenzae is common in all the disease groups. Skin test reactions having the time course and macroscopic appearance of Type I (immediate) and Type III (late) were obtained after prick and intracutaneous skin testing with HCW antigen in varying concentrations in a group of patients with asthma, chronic bronchitis or cystic fibrosis and in a control group. It is suggested that IgE and short-term sensitizing IgG antibodies may be responsible for the immediate reactions while activation of the alternative pathway of complement by endotoxin contained in HCW could be responsible for the late reactions. HCW antigens were shown to release histamine from non-sensitized human leucocytes; HCW and HCF antigens were shown to release histamine from non-sensitized human lung. None of the antigens tested had an effect on beta-receptors in tracheal preparations. It is proposed that these reactions may contribute to the pathogenicity of H. influenzae in the lower respiratory tract.

Antigen-Antibody Reactions↗

PubMed1979

Dysphoric response to neuroleptic treatment in schizophrenia: its relationship to autonomic arousal and prognosis.

Longitudinal pharmacotherapeutic data from 58 schizophrenic patients suggest that the emergence of a dysphoric state, characterized by a combination of anxiety, depression, and accusatoriness, early in the course of neuroleptic treatment augurs poor therapeutic outcome and is associated with an unfavorable prognostic classification and a tendency for autonomic arousal to increase with treatment from a drug-free base line somewhat higher than normal. These associations particularly characterized the nonparanoid schizophrenics with nuclear prognostic classification and poor short-term as well as long-term therapeutic outcome; they did not apply to the paranoids. The dysphoric response was unrelated to base-line dysphoria or to the extrapyramidal reactions to neuroleptic medication, and seemed to reflect some basic biological differences between the poor prognosis nonparanoid, the good prognosis nonparanoid, and the paranoid schizophrenics.

Adult↗

PubMed1977

Effects of clear-cutting on the composition of bacterial populations of northern spruce forest soil.

This paper concerns the microbiological part of an investigation, the goal of which is to describe the biological changes in coniferous forest soil upon clear-cutting in a northern (66 degrees 20'N) moraine area where reforestation after clear-cutting had been met with difficulty. The zoological part of the work has been published elsewhere. Clear-cut sites of increasing age (4, 7, and 13 years) were investigated and compared with a forest area where no cutting of timber had been done for 120 years. A total of 684 random isolates of heterotrophic bacteria from pooled samples of the sites investigated were passed through 36 biochemical tests. The data were condensed by the aid of factor analysis, and a comparison of the populations was based on squared Euclidean distances between population centroids in a seven-dimensional factor space. The most marked population changes followed a course in which frequencies of some population characteristics became increasingly different until 7 years after clear-cutting, with regression towards the control clearly evident after 13 years. Disturbances of shorter duration were also relatively common, with maximal changes observed in the 4-year samples, and with a complete recovery after 7 years. The mineral soil populations seemed to undergo greater changes than the humus populations. The most distinct changes believed to be due to clear-cutting were the short-term relative increase of organisms producing acid from sucrose and dissolving CaHPO4, and a long-term increase of lipolytic and caseolytic, rhamnose-negative organisms; both in the mineral soil layer. In the humus layer, a short-term increase of lipolytic and of rhamnose-positive organisms seemed to take place.

Analysis of Variance↗

PubMed2026

Space to grieve and grow: A systematic review of psychosocial interventions for people newly diagnosed with multiple sclerosis.

OBJECTIVE: This systematic review synthesized evidence from intervention studies published over the past 25 years that aimed to improve coping and psychosocial well-being among individuals early in the multiple sclerosis (MS) disease course. The goal was to evaluate intervention characteristics, theoretical foundations, and psychosocial outcomes, and to identify gaps for future research. METHODS: Following PRISMA guidelines, a comprehensive search was conducted across PubMed, CINAHL, PsycINFO, and Web of Science (2000-2025). Eligible studies included quantitative or mixed-methods interventions that addressed coping or psychosocial well-being among adults newly diagnosed with MS. Data extraction and quality assessment were completed independently by multiple reviewers using the Joanna Briggs Institute Critical Appraisal Tools. RESULTS: Seven studies (n = 345) met inclusion criteria, representing cognitive-behavioral therapy, mindfulness, acceptance-based, and nurse- or peer-delivered interventions. The interval between diagnosis and intervention enrollment ranged from 14 days to >4 years, suggesting different phases of adjustment. All interventions produced significant short-term improvements in at least one psychosocial domain (e.g., anxiety, depression, stress, coping, or illness acceptance). However, sustained effects beyond 6-12 months were inconsistent. Common mechanisms across interventions included enhancing self-efficacy, stress management, and adaptive coping. CONCLUSIONS: The available evidence suggests that brief psychosocial interventions for adults in the early years after MS diagnosis are feasible and may provide short-term benefits for selected psychosocial outcomes. However, the evidence base remains limited, heterogeneous, and preliminary. Future studies should more clearly define diagnosis timing, use adequately powered designs and longer follow-up, and examine mechanisms of change.

Humans↗

PubMed1977

A psychometric evaluation of the acute tremulous state.

The acute alcohol withdrawal state (tremulous state), with mainly vegetative symptoms and without evident loss of conciousness or confusion, was evaluated as to functional psychopathological disturbances aiming to present a complete and objective record of the clinical findings and to establish a control of the course and drug treatment. We tried to meet the inherent inability to cooperate by using proven and also new test devices (flicker fusion, simple reaction time on light and tone, reaction on multiple serial stimuli, visual motor coordination, tachistoscopic perception and memory test, test of concentration and sustained performance with simple arithmetical calculation by analogy with the Pauli test) to circumvent the difficulties arising when patients have to answer long questionnaires. The tests enabled a measurement of the disturbances as objective as possible and proved to have a discriminating sensitivity for different functions. The correlations between the results were found to be similar for alcoholics and controls. tthe degree of the established functional cerebral and cerebellar defects which was revealed was more severe than expected in this mild stage of withdrawal.

Adult↗

PubMed1978

Comparative studies of intracellular transport of secretory proteins.

The physiology of protein intracellular transport and secretion by cell types thought to be free from short-term control has been compared with that of the pancreatic acinar cell, using pulse-chase protocols to follow biosynthetically-labeled secretory products. Data previously obtained (Tartakoff, A.M., and P. Vassalli. J. Exp. Med. 146:1332-1345) has shown that plasma-cell immunoglobulin (Ig) secretion is inhibited by respiratory inhibitors, by partial Na/K equilibration effected by the carboxylic ionophore monensin, and by calcium withdrawal effected by the carboxylic ionophore A 23187 in the presence of ethylene glycol bis (beta-aminoethylether)-N,N,N',N'-tetraacetic acid (EGTA) and absence of calcium. We report here that both inhibition of respiration and treatment with monensin slow secretion by fibroblasts, and also macrophages and slow intracellular transport (though not discharge per se) by the exocrine pancreatic cells. Attempted calcium withdrawal is inhibitory for fibroblasts but not for macrophages. The elimination of extracellular calcium or addition of 50 mM KCl has no major effect on secretory rate of either fibroblasts or macrophages. Electron microscopic examination of all cell types shows that monensin causes a rapid and impressive dilation of Golgi elements. Combined cell fractionation and autoradiographic studies of the pancreas show that the effect of monensin is exerted at the point of the exit of secretory protein from the Golgi apparatus. Other steps in intracellular transport proceed at normal rates. These observations suggest a common effect of the cytoplasmic Na/K balance at the Golgi level and lead to a model of intracellular transport in which secretory product obligatorily passes through Golgi elements (cisternae?) that are sensitive to monensin. Thus, intracellular transport follows a similar course in both regulated and nonregulated secretory cells up to the level of distal Golgi elements.

Calcimycin↗

PubMed2026

Distinct contributions of schizophrenia and neurotransmitter pathway genetic liability to neurocognition and antipsychotic efficacy in drug-naïve first-episode schizophrenia.

The genetic mechanisms underlying heterogeneity in symptom presentation and antipsychotic response in schizophrenia remain unclear, limiting the development of personalized treatment. We integrated genome-wide schizophrenia polygenic risk scores (SZ-PRS) and pathway-specific PRSs (pPRSs) for four major neurotransmitter systems to examine their associations with clinical phenotypes across the course of illness. Primary analyses were conducted in 394 drug-naïve, first-episode patients from the Chinese First-Episode Schizophrenia Trial (CNFEST) to investigate associations with baseline symptom severity, neurocognitive impairment, and longitudinal treatment response. The CNFEST cohort included 52-week longitudinal assessments of symptoms and neurocognition using the Positive and Negative Syndrome Scale and a modified version of the MATRICS Consensus Cognitive Battery. An independent case-control cohort evaluated associations with schizophrenia diagnosis, while a cohort of 514 healthy adults assessed whether PRS-cognition associations are specific to schizophrenia. Higher SZ-PRS predicted schizophrenia diagnosis (OR = 2.28, Pfdr = 0.003) and poorer baseline executive function (β = -0.44, Pfdr = 0.006) and working memory (β = -0.49, Pfdr = 0.018), but these associations were absent in healthy adults. In contrast, pPRSs showed weaker associations with diagnosis and baseline cognition but were more informative for treatment outcomes: higher serotonin-pPRS predicted greater improvement in depressive symptoms (Pfdr = 0.023-0.032), and higher GABA-pPRS predicted greater improvement in overall symptoms (Pfdr = 0.038-0.043) during weeks 4-24. Exploratory drug-specific analyses further suggested that treatment response varied across antipsychotics and was differentially associated with pPRSs. These findings demonstrate that genome-wide and pathway-specific PRSs contribute distinctly to schizophrenia phenotypes, supporting their integration for personalized stratification and treatment.

Humans↗

PubMed2026

Adverse pregnancy outcomes and long-term cardiovascular disease risk.

Pregnancy provides a unique physiological stress test for the cardiovascular system, during which, adverse pregnancy outcomes (APOs) can unmask latent susceptibility to future disease. Common complications, including hypertensive disorders of pregnancy (HDP), gestational diabetes, and preterm birth (delivery before 37 weeks' gestation), identify women at substantially higher long-term risk of cardiovascular morbidity and mortality compared with women without a history of APOs. These excess risks likely reflect the combined effects of pre-existing cardiometabolic and genetic susceptibility, as well as the haemodynamic and metabolic stressors of pregnancy, heralding accelerated risk factor trajectories, relative impairment in endothelial and microvascular function, and early disease onset. This final Review in the Series extends the focus from cardiovascular disease during pregnancy and HDP to the long-term cardiovascular implications of APOs after delivery. We synthesise epidemiological data quantifying cardiovascular risk across major APO phenotypes and emerging evidence linking maternal APO history with cardiometabolic risk trajectories in offspring. We also delineate putative mechanistic pathways and summarise guidelines and consensus-informed recommendations for short-term and long-term follow-up after APOs. Finally, we propose practical approaches for integrating APO history into cardiovascular disease risk assessment and guideline-directed prevention across the female life course. We highlight key knowledge gaps, including uncertainty about optimal follow-up models, the limitations of current risk-stratification tools, and the absence of APO-specific prevention trials. We also outline priorities for mechanistic and implementation research. Positioning APOs as early, sex-specific indicators of cardiovascular risk offers a key window of opportunity to shift prevention upstream and improve cardiovascular health outcomes for women.

Humans↗

PubMed2026

Short-Term Success, Long-Term Failure: Strain Turnover and Virulence Re-Emergence May Drive Relapse in Pouchitis.

BACKGROUND & AIMS: Pouchitis, de-novo small intestinal inflammation is the most common complication developing in patients with ulcerative colitis after total large bowel resection and ileal pouch-anal anastomosis (IPAA) reconstruction. While the first line treatment is antibiotics, the microbial properties underlying flare, remission, and relapse remain vague. We aimed to investigate how antibiotic treatment drives microbial shifts that underlie remission and contribute to relapse. METHODS: Patients after IPAA were prospectively recruited during clinical flare (active pouchitis defined by the pouchitis disease activity index) and received a two-week course of metronidazole with either ciprofloxacin or doxycycline. Longitudinal follow up was conducted during a year. Clinical data were recorded, and fecal samples were obtained during consequent flares, recovery, and relapses. Microbial gene repertoire, strains, and resistance to antibiotics were determined. Metagenomic sequencing was integrated with whole-genome sequencing of Escherichia coli isolates, providing strain-specific virulence and antibiotic resistance profiles. RESULTS: Patients (n=21) recruited provided 130 samples over one-year follow-up. Both antibiotic regimens induced rapid but transient clinical improvement, reflected by a decrease in fecal calprotectin (728 to 265 μg/g, p<.05), and a marked reduction in bacterial exotoxin genes (p<.05), yet both parameters rebounded by 6 weeks post-treatment. Antibiotic resistance gene abundance significantly increased during treatment (p<.05), without expansion of resistance gene diversity, indicating that pre-existing resistant strains increased. CONCLUSIONS: Antibiotic-induced remission in pouchitis likely results from a temporary suppression of exotoxin-producing bacteria, enabling resistant, low-virulence strains to transiently dominate; The fact that harmful strains quickly rebound after treatment cessation highlights the need for targeted approaches to achieve sustained microbial control.

Inflammatory bowel disease↗