Biomedical subjects

C Huamán

Publications and source records attributed to C Huamán.

4 recordsLinked to original sources

PubMed2000

[Nutritional evaluation of Lepidium meyenii (MACA) in albino mice and their descendants].

The Maca (Lepidium meyenii) is a Peruvian hypocotyl that grows exclusively between the 3700 and 4500 masl at the Peruvian Andes. Traditionally it is attributed nutritional, energizing, fertilizing properties among others. With the purpose of evaluate scientifically the nutritional property of Maca, we carried out a controlled study in two generations of albino Swiss mice (parents and breeding). The parents were aleatorily assigned to one of three nutritional schedules. The food of each group was prepared based on powder from a commercial balanced food (CBF) of which 30% was replaced by raw or cooked Maca according to the corresponding group or pure CBF in the control group. The groups were this way: 1) Raw Maca Group; 2) Cooked Maca Group; and, 3) Control Group. The results showed that the curves of growth were similar and adequate for the three groups. However, the cooked Maca group showed the best curve. These data were better observable in the second generation of animals, with significant statistical difference (p < 0.05). The CBF group had a better growth than raw Maca group. No signs of malnutrition nor overweight were observed in none of the groups. The serum values of total proteins and albumin were statistically superior for the mice group eating cooked Maca than that of the raw Maca and CBF groups. This study demonstrates, in a scientifical evaluation, one of the traditionally attributed properties of Maca, the nutritional capability.

Animal Nutritional Physiological Phenomena↗

PubMedDate not supplied

[Peptic ulcer in patients with cirrhosis].

This study was carried out at the of gastroenterology service from Hospital Nacional "Daniel A. Carrión" Callao-Peru, between June 1993 and May 1994, in order to determine the incidence, as well as, the clinical and endoscopic features of peptic ulcer disease in cirrhotic patients. 24 out of 46 (52.17%) hospitalized cirrhotic patient during this period, had peptic ulcer disease. The male:female ratio was 1:1. The mean age was 63.54 years, ranging from 44 to 90. There was statistical association (p < 0.05) between the severity of liver disease determined by Child Pugh Score and the presence of gastric ulcer. Regarding symptomatology, 54.16% had hematemesis and/or melena and 37.5% were asymptomatic. 6 patients had 2 or more ulcers, presenting the total series as a whole 35 ulcers, whose size ranged from 0.4 a 1.2 cm. Gastric antrum was the most often location (60%) followed by duodenal bulb (20%). We conclude that peptic ulcer disease in our cirrhotic patients is more frequent than reported by international literature (5-32%). Severity of liver disease was associated to gastric ulcer.

Adult↗

PubMedDate not supplied

[Pediatric colonoscopic polypectomy].

Colorectal polyps are relatively frequent in infancy and constitute one of the main causes of bleeding per rectum. Endoscopic polypectomy, with its lower morbidity and mortality, has revolutionized its treatment. Between October 1, 1985 and May 31, 1994, 122 polypectomies were done in 88 pediatric patients. Forty five patients (51.1%) were male and 43 female (48.9%). Forty four patients (50%) were between 1 and 5 years of age. Ninety five polyps (77.9%) were found more frequently in the rectum. Regarding the size, 63 polyps (51.6%) measured between 1 and 2 cm. Seventy three patients (83%) had a single polyp, 10 patients (11.4%) had 2 polyps and 1 patient had 12 polyps. Ninety six polyps (78.7%) were pedunculated, being this the more frequent form found. Histologically the most common was the juvenile polyp, found in 106 cases (87.6%). The polypectomies was carried out without using general anesthesia and is performed as an outpatient procedure. We had no experience of endoscopic complications. It is concluded that colonoscopy polypectomy is a useful, simple and safe procedure for treating colorectal polyps in children.

Adolescent↗

PubMedDate not supplied

[Cholelithiasis in patients with liver cirrhosis].

We retrospectively studied 67 cirrhotic patients hospitalized in the service of gastroenterology of Hospital Daniel A. Carrión, Callao, Perú, between June 1993 and July 1995, aimed to determine the frequency of cholelithiasis and its main clinical and epidemiological features. Twelve out of 67 cirrhotic patients (17.91%) had cholelithiasis. 24% of women and 14.3% of men were affected (p > 0.05). The mean age of women and men were 57.33 and 57.5 years old respectively (range: 41-67 years old). The frequency of cholelithiasis did not increase with age and the proportionally most affected age group was 41-50 years (33.33%). Alcoholic etiology was the most often in cirrhotic patients with cholelithiasis (41.67%). The severity of liver disease influenced in the cholelithiasis frequency (p = 0.001) and 33.33% of patients with gallstones were in grade C of Child Pugh Score. Two thirds of patients were asymptomatic. We conclude: 1. Cholelithiasis in our cirrhotic patients more prevalent than in general population (17.91% vs 0.7-5%). 2. Age did not influence in cholelithiasis prevalence in our cirrhotic patients. 3. The severity of liver disfunction influenced in highly significant way (p = 0.001) on cholelithiasis prevalence. 4. Cirrhotic patients with gallstones had mostly (66.67%) an asymptomatic course.

Adult↗