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Biomedical subjects

H Q Jin

Publications and source records attributed to H Q Jin.

8 recordsLinked to original sources
PubMed1994

[A contour and mineral content comparison of vascularized and non-vascularized bone grafts]

This study made a comparison between vascularized bone graft (VBG) and non-vascularized bone graft (NVBG) in mandible of canine by using electron computer to assess the contour of grafted bone and measuring the mineral contents. On the 3rd, 5 th, 7 th, 15 th postoperative day, the contour of VBG and NVBG were similar and all of them kept the original contour. On the 30 th,60th,90th,180th postoperative day, VBG remained the original contour, but the contour of NVBG became thicker obviously than that of VBG for the remained cortical bone(most of which was resorbed) were enveloped with a lot of new bone. The kind of resorption of NVBG cortical bone in our study was characterized by extensive resorption on the surface just like nibbling of silkworm, unlike "tunnel" described in the literatures. There were no statistically differences between mineral contents of VBG and that of NVBG.

Journal Article↗
PubMed1992

[Comparative study on healing process between vascularized and non-vascularized autogenous bone grafts]

This study made a histological comparison (light microscope and transmission electron microscope) between vascularized bone graft (VBG) and non-vascularized bone graft (NVBG) in mandible of dog.The study showed:the healing process of VBG was the same as that of bone fracture.The "creeping substitution" process of NVBG was imbued with the inflammation induced by dead bone.There was no significat difference on the bone union between VBG and NVBG perhaps for the recipient region was better vascularized.

Journal Article↗
PubMed1991

Psychological performance of accident-prone automobile drivers in China: a case-control study.

To evaluate the role of neurobehavioural factors in the aetiology of recurrent automobile accidents, we administered the Revised Wechsler Adult Intelligence Scale (WAIS-R), the Eysenck Personality Questionnaire (EPQ), and choice and simple reaction time tests to 31 accident-prone automobile drivers. These drivers who had caused three or more traffic accidents during the years 1980-1984, were selected from records of 2723 traffic accidents registered by Hefei Traffic Police Department during the years 1980-1984. The same tests were administered to an equal number of sex- and age-matched control drivers who had no reported involvement in automobile accidents. None of the subjects had suffered from any neuropsychiatric illness or head injury. Comparisons between the two groups indicated that for accident-prone drivers scores on picture completion and block design subtests of the WAIS-R were significantly lowered (p less than 0.05); scores for neurosis extrovert behaviour and psychosis (EPQ) were significantly higher (p less than 0.05); and the number of errors in the choice reaction time test was significantly higher (p less than 0.01). It is suggested that accident-prone drivers have lower psychological performance, poorer judgement and a higher tendency than safe drivers to be neurotic, extrovert and psychotic.

Accident Proneness↗
PubMed1990

Treatment of severe beta-thalassemia (patients) with myleran.

We previously reported that myleran, a cell cycle nonspecific drug, can stimulate gamma-globin gene expression in anemic adult rhesus monkeys. This finding prompted us to treat two patients with severe beta-thalassemia with myleran. Both patients received an initial course of therapy, constantly of myleran at a dosage of 0.2 mg/kg/d for 9 days followed by 0.15 mg/kg/d for the next 11 days. One patient received an additional 20-day course of myleran at a dosage of 0.2 mg/kg/d beginning 44 days after completion of the first course. No severe ill effects related to the drug were observed during or after drug administration. After 20 days of myleran treatment, levels of HbF and reticulocytes increased in both patients and level of F cells increased in patient 1. In patient 1, Hb concentration rose from 42g/L (9 days after transfusion) before treatment to a maximum of 65g/L afterward; in patient 2, it rose from 74g/L to a maximum of 106g/L. A value of 15g/L above baseline lasted for about 5 months in both patients. Hypomethylation of bone marrow DNA near the gamma-globin gene was demonstrated in patient 1.

Busulfan↗