Diet affects reflux in a rural African community.

Reflux in this region of South Africa is known to be more frequent and less acidic than in other countries. We investigated the relationship between reflux and diet. We recruited 57 healthy participants.

24-Hour Measurement of Gastric pH in Rural South Africa.

Background. Previous studies have established norms of 24-hour gastric pH profiles for western countries. This study was designed to establish the pattern for a rural African population with a high incidence of oesophageal cancer.

Normal values of 24-hour ambulatory esophageal impedance-pH monitoring in a rural South African cohort of healthy participants.

There are no data on 24-hour multichannel intraluminal impedance and pH monitoring in African populations. The purpose of this study was to provide the normal values of esophageal impedance and pH monitoring in a rural African populations. South African healthy rural participants were recruited and underwent 24 hours of esophageal impedance and pH monitoring.

STD/HIV association: effects on semen characteristics.

A cross-sectional study was conducted on 83 fertile/infertile men to investigate the association between STDs and HIV and their effects on semen characteristics and seminal leucocytes. HIV antibodies in semen, andrological parameters and seminal leucocytes were analyzed. Of the 83 subjects, 36 were HIV+ and 47 were HIV- .

Sperm characteristics and accessory sex gland functions in HIV-infected men.

A comparative study was carried out in the andrology clinic, Parirenyatwa Hospital, Harare, Zimbabwe, to investigate the sperm characteristics and accessory sex gland functions in HIV-infected individuals. Sixty-two patients with infertility problems who attended the clinic were requested to donate semen and blood after consent was obtained. HIV antibodies in paired semen and blood samples, sperm morphology, sperm count, sperm motility, seminal leucocytes, seminal fructose, seminal neutral alpha-glucosidase, and citric acid were analyzed.