Showing posts with label Spices. Show all posts
Showing posts with label Spices. Show all posts

Sunday, 28 January 2018

Effect of red pepper and black pepper on the stomach

Am J Gastroenterol. 1987 Mar;82(3):211-4.

Effect of red pepper and black pepper on the stomach.
Myers BM, Smith JL, Graham DY.

Abstract
Spices have long been implicated as a cause of gastric mucosal injury. We assessed the effects of red and black pepper on the gastric mucosa using double-blind intragastric administration of test meals containing red pepper (0.1-1.5 g) or black pepper (1.5 g) to healthy human volunteers; aspirin (655 mg) and distilled water were used as positive and negative controls, respectively. 

Serial gastric washes were performed after test meal administration and gastric contents were analyzed for DNA, pepsin, blood, sodium, potassium, parietal cell secretion, and nonparietal cell secretion. 

Both red pepper and black pepper caused significant increases in parietal secretion, pepsin secretion, and potassium loss. 

Gastric cell exfoliation (as reflected in DNA loss into gastric contents) was increased after red or black pepper administration; the increase after red pepper administration was dose dependent. 

Mucosal microbleeding was seen after spice administration and one subject had grossly visible gastric bleeding after both red pepper and black pepper administration. There were no significant differences from control between the test meals, in nonparietal volume, fractional recovery of the gastric secretions, or sodium secretion.

Finally, no spice was significantly different from aspirin in any parameter studied; indeed, aspirin was comparable to the higher doses of pepper. The long-term result of daily pepper ingestion is unknown. Whether spices are detrimental, beneficial (e.g., inducing an adaptive cytoprotective response), or have no significant long-term effect on the gastric mucosa is unknown and deserves further study.

https://www.ncbi.nlm.nih.gov/pubmed/3103424
***
The objective of this study was to determine the effect of use of red pepper, black pepper and their mixture powder on performance of broiler chicks. 320 one day old Ross 308 chicks were used in this study. Chicks were fed by basal diet as control, 0.02% red pepper (T1), 0.02% black pepper (T2) and 0.01% red pepper + 0.01 %black pepper
powders (T3). Feed intake, body weight gain, feed conversion ratio were determined. At the end of trial 4 chicks form each group were separated and slaughtered. Cholesterol, triglyceride, glucose levels and antibody titer against new castle vaccine were investigated. The result revealed that the inclusion of red and black pepper in broilers diet improved body weight gain, feed intake and conversion ratio. in addition use of red and black pepper depressed the cholesterol, triglyceride and glucose concentration and decreased H/L ratio concentration in broiler's blood plasma (p<0.05). mucosa and sub mucosa diameters of small intestine were significantly increased (p<0.05). 

musclaris (is a thin layer (lamina) of muscle of the gastrointestinal tract, located outside the lamina propria and separating it from the submucosa) and
serosa diameters ( is a smooth tissue membrane consisting of two layers of mesothelium, which secrete serous fluid) were higher in T1, and T3 than control groups. Data from this study showed use of red and black pepper powder on broilers diets cause increase total diameter of small intestine parts (p<0.05).It was concluded that the use of red and black pepper as feed additive at 1% enhanced the overall performance of broiler chicks. 



http://www.scholarsresearchlibrary.com/articles/the-effect-of-use-red-pepper-capsicum-annum-l-and-black-pepper-pipernigrum-l-on-performance-and-hematological-parameters.pdf

Thursday, 25 January 2018

Nutmeg - a dangerous spice


Medicinal properties and research

In the 19th century, nutmeg was thought to be an abortifacient, which led to numerous recorded cases of nutmeg poisoning. Although used as a folk treatment for other ailments, nutmeg has no proven medicinal value.

One study showed that the compound macelignan isolated from Myristica fragrans may exert antimicrobial activity against Streptococcus mutans, but this is not a confirmed treatment.

In doses exceeding its use as a seasoning, nutmeg may interact with anxiolytic drugs, produce allergic reactions, cause contact dermatitis, or evoke acute episodes of psychosis.

Psychoactivity and toxicity

Effects

In low doses, nutmeg produces no noticeable physiological or neurological response, but in large doses, raw nutmeg has psychoactive effects deriving from anticholinergic-like hallucinogenic mechanisms attributed to myristicin and elemicin. Myristicin, a monoamine oxidase inhibitor and psychoactive substance, can induce convulsions, palpitations, nausea, eventual dehydration, and generalized body pain. For these reasons in some countries, whole or ground nutmeg may have import restrictions except in spice mixtures containing less than 20 percent nutmeg.

Nutmeg poisonings occur by accidental consumption in children and by intentional abuse with other drugs in teenagers. Fatal myristicin poisonings in humans are rare, but three have been reported, including one in an 8-year-old child and another in a 55-year-old adult, with the latter case attributed to a combination with flunitrazepam.

Nutmeg intoxication can vary greatly from person to person, but is often associated with side effects such as excitedness, anxiety, confusion, headaches, nausea, dizziness, dry mouth, redness in eyes, and amnesia. Nutmeg poisoning is also reported to induce hallucinogenic effects, such as visual distortions and paranoia. Although rarely reported, nutmeg overdose can result in death, especially if combined with other drugs. Intoxication takes several hours before maximum effect is experienced. The effects of nutmeg intoxication may last for several days.

Toxicity during pregnancy

Nutmeg was once considered an abortifacient, but may be safe for culinary use during pregnancy. However, it inhibits prostaglandin production and contains hallucinogens that may affect the fetus if consumed in large quantities.

Toxicity to dogs

Nutmeg is highly neurotoxic to dogs and causes seizures, tremors, and nervous system disorders which can be fatal. Nutmeg's rich, spicy scent is attractive to dogs, which can result in a dog ingesting a lethal amount of this spice. Eggnog and other food preparations which contain nutmeg should not be given to dogs.

https://en.wikipedia.org/wiki/Nutmeg


Saturday, 10 December 2016

Hot spices - paprika & cayenne pepper - increase gut permeability; black or green pepper did not increase gut permeability as much (but the researches might have tried the less spicy capsicum rather than Indian green chillies)

J Nutr. 1998 Mar;128(3):577-81.
Hot spices influence permeability of human intestinal epithelial monolayers.
Jensen-Jarolim E1, Gajdzik L, Haberl I, Kraft D, Scheiner O, Graf J.

Author information

Abstract

Indirect evidence suggests that hot spices may interact with epithelial cells of the gastrointestinal tract to modulate their transport properties.

Using HCT-8 cells, a cell line from a human ileocoecal carcinoma, we studied the effects of spices on transepithelial electrical resistance (TER), permeability for fluorescein isothiocyanate (FITC)-labeled dextrans with graded molecular weight, and morphological alterations of tight junctions by immunofluorescence using an anti-ZO-1 antibody, a marker for tight junction integrity.

Two different reactivity patterns were observed: paprika and cayenne pepper significantly decreased the TER and increased permeability for 10-, 20- and 40-kDa dextrans but not for -70 kDa dextrans.
Simultaneously, tight junctions exhibited a discontinuous pattern.

Applying extracts from black or green pepper, bay leaf or nutmeg increased the TER and macromolecular permeability remained low. Immunofluorescence ZO-1 staining was preserved.

In accordance with the above findings, capsaicin transiently reduced resistance and piperine increased resistance, making them candidates for causing the effects seen with crude spice extracts. The observation that Solanaceae spices (paprika, cayenne pepper) increase permeability for ions and macromolecules might be of pathophysiological importance, particularly with respect to food allergy and intolerance.

https://www.ncbi.nlm.nih.gov/pubmed/9482766/